Part of the K2 Training line the K2 Radical 100 inline skates are the lightest, fastest and most comfortable training skates on the market today. They are known for their ability to provide comfort and support while enjoying the speed and performance of a 100mm skate. The Radical 100 features a Radical Cuff that will provide you with support and the Original softboot provides the best fit and comfort on the market. The 400 Longmount frame on the Radical 100 provides you with optimal stability and speed and can be adjusted on the base of the boot to give you a custom feel. With 100mm wheels and ILQ 9 bearings you will get a fast and smooth roll that will have you flying around the streets or parks at top speed. The K2 Radical 100 inline skates are great for longer skates, training and skating marathons.

Skill Range:

Radical Cuff: low-cut and lightweight

400 Longmount Frame: fully adjustable and stable at speed

Shipping Restriction: This item is not available for shipment outside of the United States.

Skate Specifications

Skate Type:
Race

Skate Cuff Height:
Low

Skate Closure System:
Traditional Laces

Closure System:
Laces and 2 Velcro Straps

Maximum Wheel Size:
90mm/100mm

Wheel Configuration:
90mm - 90mm - 100mm - 100mm

Wheel Durometer:
85A

Bearing Grade:
High Performance

Bearing Type:
ILQ 9

Skate Frame Material:
Performance Composite Materials

Frame Material:
Aluminum Alloy Longmount

Lining Material:
Original Softboot

Size Adjustable:
No

Special Features:
Radical Cuff

Skill Range:

Model Year:
2013

Model Number:
I12020070

Product ID:
252519

Shipping Restriction:
This item is not available for shipment outside of the United States.

Overall these are exceptionally GREAT skates. But the tiny little zipper pulls are hard to grip and already (after @ 6 months) one of them broke off.
Also, the top strap would be easier to get a good grip & pull on if it were a couple inches longer.
As for the unique cross-strap ratchet mechanism, it was really took me awhile to figure out you need to push down on the sides of the rachet mechanism to release the plastic strap. (And there is no mention of this whatsoever in the provided literature.)